Thank you for viewing. This item was used for several years at my parents' house, placed under a kotatsu (heated table). It stopped being used about 10 years ago when they moved, and it has been stored in a closet since then. It comes from a smoke-free and pet-free environment. The actual size is approximately 230 x 195 cm. Before listing, I tested it by turning it on and confirmed that all modes are functioning without any problems. However, this is just a casual check, so please refrain from purchasing if you are concerned.